Sen. Tammy Baldwin (D-Wis.) has launched a new campaign ad in which she opens up about her mother’s life-long struggle with drug addiction and touts her own efforts to combat the nation’s opioid epidemic.

Baldwin, who faces a tough reelection race in November, uses the 60-second spot to recall times during her childhood when she would come home from school and “pound” on the door, saying her mother wouldn’t answer because she’d be “passed out.”

“My mother had a drug abuse problem. She struggled with addiction to prescription drugs her whole life,” Baldwin says in the ad. “I had to grow up fast, very fast.”